HỆ THỐNG GIẢM SÓC TRƯỚC TRÊN INFINITI FX35, FX45 2003
FSU-1 FRONT SUSPENSION E SUSPENSION CONTENTS C D F G H I J K L M SECTION FSU A B FSU Revision; 2004 April 2003 FX FRONT SUSPENSION PRECAUTIONS 2 Caution 2 PREPARATION 3 Special Service Tools (SST) 3 Commercial Service Tools 4 NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING 5 NVH Troubleshooting Chart 5 FRONT SUSPENSION ASSEMBLY 6 On-Vehicle Inspection and Service 6 INSPECTION OF TRANSVERSE LINK BALL JOINT END PLAY 6 STRUT INSPECTION 6 Wheel Alignment Inspection 6 DESCRIPTION 6 PRELIMINARY CHECK 6 INSPECTION OF CAMBER, CASTER AND KINGPIN INCLINATION ANGLES 6 Components 8 Removal and Installation 9 REMOVAL 9 INSTALLATION 10 COIL SPRING AND STRUT 11 Removal and Installation 11 REMOVAL 11 INSTALLATION 11 Disassembly and Assembly 12 DISASSEMBLY 12 INSPECTION AFTER DISASSEMBLY 12 ASSEMBLY 13 TRANSVERSE LINK 14 Removal and Installation 14 REMOVAL 14 INSPECTION AFTER REMOVAL 14 INSTALLATION 15 STABILIZER BAR 16 Removal and Installation 16 REMOVAL 16 INSPECTION AFTER REMOVAL 16 INSTALLATION 16 FRONT SUSPENSION MEMBER 17 Removal and Installation 17 REMOVAL 17 INSPECTION AFTER REMOVAL 17 INSTALLATION 17 SERVICE DATA 18 Wheel Alignment (Unladen) 18 Ball Joint 18 Wheelarch Height (Unladen*) 18 FSU-2 PRECAUTIONS Revision; 2004 April 2003 FX PRECAUTIONS PFP:00001 Caution AES000MZ ● When installing rubber bushings, final tightening must be carried out under unladen conditions with tires on ground. Oil will shorten the life of rubber bushings. Be sure to wipe off any spilled oil. ● Unladen conditions mean that fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools and mats are in designated positions. ● After servicing suspension parts, be sure to check wheel alignment. ● Caulking nuts are not reusable. Always use new ones when installing. Since new caulking nuts are pre- oiled, tighten as they are. ● Avoid burden to front cross bar. PREPARATION FSU-3 C D F G H I J K L M A B FSU Revision; 2004 April 2003 FX PREPARATION PFP:00002 Special Service Tools (SST) AES000N0 The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here. Tool number (Kent-Moore No.) Tool name Description KV991040S0 ( — ) CCK gauge attachment 1. Plate 2. Guide bolts 3. Nuts 4. Springs 5. Center plate 6. KV9910 4020 Adapter A a: 72 mm (2.83 in) dia. 7. KV9910 4030 Adapter B b: 65 mm (2.56 in) dia. 8. KV9910 4040 Adapter C c: 57 mm (2.24 in) dia. 9. KV9910 4050 Adapter D d: 53.4 mm (2.102 in) dia. Measuring wheel alignment HT72520000 (J25730-A) Ball joint remover a: 33 mm (1.30 in) b: 50 mm (1.97 in) r: 11.5 mm (0.453 in) ● Removing steering outer socket ● Removing transverse link ST35652000 ( — ) Strut attachment Disassembling and assembling strut ST3127 S000 (See J25742-1) Preload gauge 1. GG91030000 Torque wrench (J25765) 2. HT62940000 ( — ) Socket adapter (1/2″) 3. HT62900000 ( — ) Socket adapter (3/8″) Measuring rotating torque of ball joint S-NT498 NT546 ZZA0807D NT124 FSU-4 PREPARATION Revision; 2004 April 2003 FX Commercial Service Tools AES000N1 Tool name Description Spring compressor Removing coil spring Power tool ● Removing wheel nuts ● Removing brake caliper assembly ● Removing undercover ● Removing steering gear ● Removing drive shaft (For AWD models) ● Removing suspension components parts S-NT717 PBIC0190E NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING FSU-5 C D F G H I J K L M A B FSU Revision; 2004 April 2003 FX NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING PFP:00003 NVH Troubleshooting Chart AES000N2 Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts. ×: Applicable Reference page FSU-8 FSU-12 — — — FSU-8 FSU-6 FSU-16 NVH in PR section NVH in RFD section NVH in RAX and RSU section NVH in WT section NVH in WT section NVH in RAX section NVH in BR section NVH in PS section Possible cause and SUSPECTED PARTS Improper installation, looseness Strut deformation, damage or deflection Bushing or mounting deterioration Parts interference Spring fatigue Suspension looseness Incorrect wheel alignment Stabilizer bar fatigue PROPELLER SHAFT (For AWD models) DIFFERENTIAL (For AWD models) REAR AXLE AND REAR SUSPENSION TIRES ROAD WHEEL DRIVE SHAFT (For AWD models) BRAKES STEERING Symptom FRONT SUSPENSION Noise ××××× × ××× ××××× Shake ×××× × × × ××××× Vibration ××××× × ×× × × Shimmy ×××× × ××× ×× Judder ××× ××× ×× Poor quality ride or han- dling ××××× ×× ××× FSU-6 FRONT SUSPENSION ASSEMBLY Revision; 2004 April 2003 FX FRONT SUSPENSION ASSEMBLY PFP:54010 On-Vehicle Inspection and Service AES000N3 Make sure the mounting conditions (looseness, back lash) of each component and component statues (wear, damage) are normal. INSPECTION OF TRANSVERSE LINK BALL JOINT END PLAY 1. Set front wheels in a straight-ahead position. Do not depress brake pedal. 2. Measure axial end play by installing and moving up/down between transverse link and steering knuckle with an iron pry bar or something similar. CAUTION: Be careful not to damage ball joint boot. STRUT INSPECTION ● Check strut for oil leakage, damage and replace if necessary. Refer to FSU-11, "COIL SPRING AND STRUT" . Wheel Alignment Inspection AES000N4 DESCRIPTION ● Measure wheel alignment under unladen conditions. NOTE: Unladen conditions mean that fuel, engine coolant, and lubricant are full. Spare tire, jack, hand tools and mats are designated positions. PRELIMINARY CHECK 1. Check tires for improper air pressure and wear. 2. Check road wheels for runout. 3. Check wheel bearing axial end play. 4. Check transverse link ball joint axial end play. 5. Check strut operation. 6. Check each mounting part of axle and suspension for looseness and deformation. 7. Check each link, rod and member for cracks, deformation and other damage. 8. Check vehicle posture. INSPECTION OF CAMBER, CASTER AND KINGPIN INCLINATION ANGLES ● Camber, caster, kingpin inclination angles cannot be adjusted. ● Before inspection, mount front wheels onto turning radius gauge. Mount rear wheels onto a stand that has same height so vehicle will remain horizontal. Using a CCK Gauge Install CCK gauge attachment (SST: KV991040S0) as following procedure in wheel, then measure wheel alignment. 1. Remove wheel nuts (3), and install a guide bolt to hub bolt. 2. Screw adapter into plate body until it contacts body tightly. 3. Screw center plate into plate. 4. Insert plate on guide bolt. Put spring in, and then evenly screw both guide bolt nut. When fastening guide bolt nut, do not com- pletely compress spring. Axial end play : 0 mm (0 in) SEIA0240E FRONT SUSPENSION ASSEMBLY FSU-7 C D F G H I J K L M A B FSU Revision; 2004 April 2003 FX 5. Place the dent of alignment gauge onto the projection of center plate and tightly contact them to measure. CAUTION: ● If camber, caster, or kingpin inclination angle is outside the standard, check front suspension parts for wear and damage, and replace suspect parts if necessary. ● King pin inclination angle is reference value, no inspec- tion is required. Toe-In Inspection Measure toe-in using the following procedure. WARNING: ● Always perform the following procedure on a flat surface. ● Make sure that no person is in front of vehicle before push- ing it. 1. Bounce front of vehicle up and down to stabilize the posture. 2. Push vehicle straight ahead about 5 m (16 ft). 3. Put a mark on base line of the tread (rear side) of both tires at the same height of hub center. These are measuring points. 4. Measure distance “A” (rear side). 5. Push vehicle slowly ahead to rotate wheels 180 degrees (1/2 turn). If wheels have rotated more than 180 degrees (1/2 turn), try the above procedure again from the beginning. Never push vehicle backward. 6. Measure distance “B” (front side). Camber, caster, kingpin inclination angles: Refer to FSU-18, " SERVICE DATA" . SEIA0241E SEIA0362E Total toe-in : Refer to FSU-18, "SERVICE DATA" . SEIA0363E FSU-8 FRONT SUSPENSION ASSEMBLY Revision; 2004 April 2003 FX Components AES000N5 SEIA0349E FRONT SUSPENSION ASSEMBLY FSU-9 C D F G H I J K L M A B FSU Revision; 2004 April 2003 FX Removal and Installation AES000N6 REMOVAL 1. Set an engine slinger to engine, then suspend engine. 2. Remove tire from vehicle with power tool. 3. Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer to BR- 20, "FRONT DISC BRAKE" . 4. Remove brake hose lock plate. Then remove brake hose from strut assembly. 5. Remove disc rotor. 6. Remove wheel sensor harness from strut assembly. CAUTION: Do not pull on wheel sensor harness. 7. Remove undercover with power tool. 8. Remove front cross bar. 9. Remove steering hydraulic piping bracket from front suspension member. Refer to PS-41, " HYDRAULIC LINE" . 10. Remove cotter pin at steering outer socket, then loosen mount- ing nut. 11. Use a ball joint remover (SST) to remove steering outer socket from steering knuckle. Be careful not to damage ball joint boot. CAUTION: Tighten temporarily mounting nut to prevent damage to threads and to prevent ball joint remover (SST) from com- ing off. 12. Remove mounting bolts of steering gear with power tool, then hang steering gear on vehicle. Refer to PS-19, " POWER STEERING GEAR AND LINKAGE" . 13. Remove front final drive side of drive shaft with power tool. (For AWD models) Refer to FAX-12, " Removal and Installation (Left Side)" , FAX-13, "Removal and installation (Right Side)" . 14. Set jack under front suspension member. 15. Remove fixing bolts and nuts between strut assembly and steering knuckle with power tool. 1. Strut upper plate 2. Strut spacer 3. Mounting insulator 4. Mounting insulator bracket 5. Mounting bearing 6. Spring upper seat 7. Spring upper rubber seat 8. Coil spring 9. Spring lower rubber seat 10. Bound bumper 11. Strut 12. Steering knuckle 13. Front suspension member 14. Transverse link 15. Stabilizer bar 16. Stabilizer bushing 17. Stabilizer clamp 18. Stabilizer connecting rod 19. Front cross bar 20. Cotter pin SEIA0328E SEIA0329E SDIA1434E FSU-10 FRONT SUSPENSION ASSEMBLY Revision; 2004 April 2003 FX 16. Remove stabilizer connecting rod upper nut with power tool, separate stabilizer connecting rod and strut assembly. 17. Remove mounting nuts between engine mounting insulator and front suspension member. 18. Remove mounting bolts which are at the back of transverse link (mounting part with body) with power tool, separate transverse link. 19. Remove mounting nuts between front suspension member and body with power tool. 20. Move jack down slowly to remove front suspension member, transverse link, stabilizer bar, drive shaft (For AWD models) and steering knuckle from vehicle as a unit. 21. Remove transverse link from steering knuckle. Refer to FSU-14, "TRANSVERSE LINK" . INSTALLATION ● Refer to FSU-8, "Components" for tightening torque. Install in the reverse order of removal. NOTE: Refer to component parts location and do not reuse non-reusable parts. ● After removing/installing or replacing suspension components and steering components, check wheel alignment. Refer to FSU-6, " Wheel Alignment Inspection" . ● After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-6, "Adjust- ment of Steering Angle Sensor Neutral Position" . ● Check the following item after service. – Installation condition of wheel sensor harness. SEIA0330E SEIA0331E [...]... replace if necessary Revision; 2004 April FSU- 12 2003 FX COIL SPRING AND STRUT ASSEMBLY A NOTE: Make sure piston rod on strut is not damaged when attaching components to strut 1 Install strut attachment (SST) to strut and fix it in a vise CAUTION: When installing strut attachment (SST) to strut, wrap a shop cloth around strut to protect it from damage B C D SEIA0296E FSU 2 3 4 Compress coil spring using... replacing suspension components and steering components, check wheel alignment Refer to FSU- 6, "Wheel Alignment Inspection" After adjusting wheel alignment, adjust neutral position of steering angle sensor Refer to BRC-6, "Adjustment of Steering Angle Sensor Neutral Position" J K L M Revision; 2004 April FSU- 17 2003 FX SERVICE DATA SERVICE DATA Wheel Alignment (Unladen) PFP:00030 AES000NC Minimum... spacer and strut from vehicle I J K L SEIA0330E INSTALLATION q q q q – Refer to FSU- 8, "Components" for tightening torque Install in the reverse order of removal NOTE: Refer to component parts location and do not reuse non-reusable parts After removing/installing or replacing suspension components, check wheel alignment Refer to FSU- 6, "Wheel Alignment Inspection" After adjusting wheel alignment, adjust... service tool), and remove coil spring CAUTION: Loosen spring compressor while making sure coil spring attachment position does not move Remove strut attachment (SST) from strut Revision; 2004 April FSU- 13 M SEIA0298E 2003 FX TRANSVERSE LINK TRANSVERSE LINK Removal and Installation PFP:54500 AES000N9 REMOVAL 1 2 3 4 5 Remove tire from vehicle with power tool Remove undercover with power tool Remove front cross... damage, and also for grease leakage If any non-standard condition is found, replace it Ball Joint Inspection q Manually move ball stud to confirm it moves smoothly with no binding Revision; 2004 April FSU- 14 2003 FX TRANSVERSE LINK Swing Torque Inspection A NOTE: Before measurement, move ball joint at least ten times by hand to check for smooth movement q Hook spring scale at ball stud Confirm spring scale... specified range, replace transverse link assembly INSTALLATION q q q Refer to FSU- 8, "Components" for tightening torque Install in the reverse order of removal NOTE: Refer to component parts location and do not reuse non-reusable parts After removing/installing or replacing suspension components, check wheel alignment Refer to FSU- 6, "Wheel Alignment Inspection" After adjusting wheel alignment, adjust... Alignment Inspection" After adjusting wheel alignment, adjust neutral position of steering angle sensor Refer to BRC-6, "Adjustment of Steering Angle Sensor Neutral Position" Revision; 2004 April FSU- 15 2003 FX K L M STABILIZER BAR STABILIZER BAR Removal and Installation PFP:54611 AES000NA REMOVAL 1 2 3 4 5 Remove tire from vehicle with power tool Remove undercover with power tool Remove stabilizer... deformation, cracks and damage, and replace if necessary INSTALLATION q q q q Refer to FSU- 8, "Components" for tightening torque Install in the reverse order of removal NOTE: Refer to component parts location and do not reuse non-reusable parts After removing/installing or replacing suspension components, check wheel alignment Refer to FSU- 6, "Wheel Alignment Inspection" After adjusting wheel alignment, adjust... Steering Angle Sensor Neutral Position" Stabilizer bar uses pillow ball type connecting rod Position ball joint with case on pillow ball head parallel to stabilizer bar SFA449BB Revision; 2004 April FSU- 16 2003 FX FRONT SUSPENSION MEMBER FRONT SUSPENSION MEMBER Removal and Installation PFP:54401 A AES000NB REMOVAL 1 2 3 4 5 Set engine slinger to engine, then suspend an engine Remove tire from vehicle... suspension member and body with power tool 12 Move jack down slowly to remove front suspension member from vehicle B C D FSU F SEIA0331E G H INSPECTION AFTER REMOVAL Check front suspension member for deformation, cracks, or any other damage Replace if necessary I INSTALLATION q q q Refer to FSU- 8, "Components" for tightening torque Install in the reverse order of removal NOTE: Refer to component parts location . SUSPENSION ASSEMBLY Revision; 2004 April 2003 FX Components AES000N5 SEIA0349E FRONT SUSPENSION ASSEMBLY FSU-9 C D F G H I J K L M A B FSU Revision; 2004 April 2003 FX Removal and Installation AES000N6 REMOVAL 1 (Unladen) 18 Ball Joint 18 Wheelarch Height (Unladen*) 18 FSU-2 PRECAUTIONS Revision; 2004 April 2003 FX PRECAUTIONS PFP:00001 Caution AES000MZ ● When installing rubber bushings, final tightening. Avoid burden to front cross bar. PREPARATION FSU-3 C D F G H I J K L M A B FSU Revision; 2004 April 2003 FX PREPARATION PFP:00002 Special Service Tools (SST) AES000N0 The actual shapes of Kent-Moore